IT940714B - Ricevitore a radiofrequenza con demodulazione ad aggancio di fase in corrispondenza della frequenza del segnale di portante - Google Patents

Ricevitore a radiofrequenza con demodulazione ad aggancio di fase in corrispondenza della frequenza del segnale di portante

Info

Publication number
IT940714B
IT940714B IT3133771A IT3133771A IT940714B IT 940714 B IT940714 B IT 940714B IT 3133771 A IT3133771 A IT 3133771A IT 3133771 A IT3133771 A IT 3133771A IT 940714 B IT940714 B IT 940714B
Authority
IT
Italy
Prior art keywords
correspondence
carrier signal
signal frequency
phase locking
radiofrequency receiver
Prior art date
Application number
IT3133771A
Other languages
English (en)
Italian (it)
Original Assignee
Sperry Rand Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sperry Rand Corp filed Critical Sperry Rand Corp
Application granted granted Critical
Publication of IT940714B publication Critical patent/IT940714B/it

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
    • H03D3/24—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits
    • H03D3/241—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits the oscillator being part of a phase locked loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
IT3133771A 1970-11-20 1971-11-19 Ricevitore a radiofrequenza con demodulazione ad aggancio di fase in corrispondenza della frequenza del segnale di portante IT940714B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US9143070A 1970-11-20 1970-11-20

Publications (1)

Publication Number Publication Date
IT940714B true IT940714B (it) 1973-02-20

Family

ID=22227739

Family Applications (1)

Application Number Title Priority Date Filing Date
IT3133771A IT940714B (it) 1970-11-20 1971-11-19 Ricevitore a radiofrequenza con demodulazione ad aggancio di fase in corrispondenza della frequenza del segnale di portante

Country Status (3)

Country Link
DE (1) DE2156722A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2115283B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IT (1) IT940714B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2481549A1 (fr) * 1980-04-25 1981-10-30 Thomson Brandt Dispositif de synthese et de demodulation combinees pour recepteurs d'ondes modulees en frequence et recepteur le comportant

Also Published As

Publication number Publication date
DE2156722A1 (de) 1972-08-10
FR2115283A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1972-07-07
FR2115283B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1975-07-18

Similar Documents

Publication Publication Date Title
IL33484A0 (en) Improved oscillator circuit configuration
HK44478A (en) A combined tuning and signal strength indicator circuit
IT1022418B (it) Ricevitore a modulazione di frequenza con un anello sincronizzato in fase come demodulatore
IT1019511B (it) Apparecchio radar ad impulsi con modulazione di fase o di frequenza
AT289892B (de) Binärer Frequenzteiler
CH538230A (de) Schaltungsanordnung zur Demodulation von phasendifferenzmodulierten Trägerfrequenzsignalen
IT940714B (it) Ricevitore a radiofrequenza con demodulazione ad aggancio di fase in corrispondenza della frequenza del segnale di portante
NL183329C (nl) Magnetron-oscillator met multipactor-afstemming.
IT964848B (it) Discriminatore di fase
AT295600B (de) Frequenzsynthesegerät
BE790491A (fr) Circuit diviseur de frequence
CH507621A (de) Frequenzdiskriminator
AT326217B (de) Frequenzdetektor
CH502022A (de) Frequenzdiskriminator
CH481528A (de) Detektorkreis für die Demodulation von FM-Signalen
CH469404A (fr) Diviseur de fréquence
IT946696B (it) Discriminatore di frequenza e o di fase con banda dinamica allar gata
CH517413A (fr) Diviseur de fréquence logique
BE786046A (fr) Discriminateur de frequences
IT967263B (it) Oscillatore per generare treni d impulsi a frequenza portante con fase coerente della por tante
AT302428B (de) Fernsehempfänger mit einer Phasen-Frequenzvergleichsschaltung
CS179910B2 (en) Sinusoidal rc oscillator with variable frequency
IL36893A0 (en) Receiver rf section
CA786959A (en) High frequency oscillator
IT967794B (it) Apparecchio ricevitore di segnali radioelettrici con piu amplifica tori a guadagno variabili